modify the following code so that 1)add a function that ask the user to remove a

Question

modify the following code so that

1)add a function that ask the user to remove a book. Remove a book from the library accodrding to its title.

2)Print all the books sorted from the oldest (publishing year) to the newest if the user asks for it .

#include<stdio.h>
#include<conio.h>
   struct book
   {
       char Title[20];
       int Year;
       char Author[20];
   };
   struct book b[5];

void ins(int n)
{
   printf("enter book Title");
   scanf("%s",&b[n].Title);

   printf("enter book Author");
   scanf("%s",&b[n].Author);

   printf("enter book Year");
   scanf("%s",&b[n].Year);

   printf("Inserted");
}

void print(int n)
{
   int i;
   for(i=0;i<n;i++)
   {
       printf("%s",b[i].Title);
       printf("%s",b[i].Author);
       printf("%d",b[i].Year);
   }
}

void main()
{
   //struct book b[5];

   int a,i=0;

   while(1)
   {

   clrscr();

   printf("1. Insertion");
   printf(" 2. Print");
   printf(" 3. Exit");

   scanf("%d",&a);

   switch(a)
   {
       case 1:
           ins (i);
           i++;
           break;
       case 2:
           print(i);
           break;
       case 3:
           return;
   }
   }
}

Explanation / Answer

/* program to implement the above 2 statements using fuction declaration or protoype */
#include<stdio.h>
#include<conio.h>
int create(void);
int display(void);
int asort(void);
int del(void);
int n,i,item,pos=0;
struct book
{
char title[22];
int year;
char author[22];
};
struct book b[4];
void main()
{
int ch ;
clrscr();
while(1)
{
printf(" MENU ");
printf(" 1.create ");
printf(" 2.display");
printf(" 3.asort ");
printf(" 4.delete ");
printf(" 5.quit ");
printf(" Enter u r choice");
scanf("%d",&ch);
switch(ch)
{
case 1: create(); break;
case 2: display(); break;
case 3: asort(); break;
case 4: del(); break;
case 5: exit(1); break;

default:printf(" u have entered wrong choice");
   break;
}
}
}

int create()
{
printf("enter the number of record:");
scanf("%d",&n);
for(i=0;i<n;i++)
{
printf(" enter book title:");
scanf("%s",&b[i].title);
printf(" enter year:");
scanf("%d",&b[i].year);
printf(" enter author:");
scanf("%s",&b[i].author);
}
return n;
}

int display()
{
if(n<=0)
{
printf(" List is empty:");
return n;
}
printf(" book details:");
for(i=0;i<n;i++)
{
printf(" %s :",b[i].title);
printf(" %d :",b[i].year);
printf(" %s :",b[i].author);
}
return n;
}

int asort()
{
int j,temp;
if(n<=0)
{
printf(" List is empty:");
return n;
}
for(i=0;i<n;i++)
{
for(j=0;j<n-1;j++)
{
if(b[j].year > b[j+1].year)
{
temp=b[j].year;
b[j].year=b[j+1].year;
b[j+1].year=temp;
}
}
}
printf("the books are sorted in the ascending order");
return n;
}

int del()
{
if(n<=0)
{
printf(" List is empty:");
return n;
}
printf(" enter the title to be deleted:");
scanf("%s",b[i].title);
for(i=0;i<n;i++)
{
if(b[i].title==b[i].title)
{
pos=i+1;
break;
}
}
if(pos==0)
{
printf(" title not found");
return n;
}
for(i=pos-1;i<n-1;i++)
a[i]=a[i+1];
n--;
return n;
}

Related Questions

Navigate

• Browse (All)
• Browse M
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.